I took the ATG out near some water south of Roswell. I had to walk away from the water to GB, when I put the coil in the water the ATG went nuts. I am thinking there is some salt mines around the Southern NM area. I know its not salt water, there was a sand area where people use as a beach and the ATG is very unstable there too unless you GB by the trees about 100 yards away. Is this how the ATG would act around salt. Am I going to have to have the ATP also, and if so how do I get it by the wife.